MOT failure data · 2025

Kia Stonic MOT problems

Across every Kia Stonic that failed its 2025 MOT, the defect testers recorded most often was brake pads less than 1.5 mm thick, on 17.42% of failure items. The broadest problem area was brakes at 29.91%. These are recorded defects across the model, not a diagnosis of any one car.

Most common Kia Stonic MOT failures

#	Recorded defect	Area	Share
1	Brake pads less than 1.5 mm thick	Brakes	17.42%
2	Wipers does not clear the windscreen effectively	Visibility	10.83%
3	Tread depth tread depth below requirements of 1.6mm	Tyres	9.69%
4	Condition has a cut in excess of the requirements deep enough to reach the ply or cords	Tyres	6.44%
5	Ball joint dust cover ball joint dust cover no longer prevents the ingress of dirt	Suspension	4.89%
6	Washers provides insufficient washer liquid	Visibility	3.21%
7	Brake discs significantly and obviously worn	Brakes	3.15%
8	Washers not working	Visibility	3.13%
9	Headlamp not working on dipped beam	Lamps, reflectors and electrical equipment	2.98%
10	Malfunction indicator lamp inoperative or indicates a malfunction	Noise, emissions and leaks	2.36%

Shares are of all recorded failure items for this model, so they sum to less than 100% — a single failed test often records several defects, and the long tail below the top 10 is not shown.

What this means if you are buying one

Use it as a viewing checklist. If you are looking at a Kia Stonic, these are the areas worth inspecting and worth asking about — and worth reading the car's own MOT history for, since a defect that keeps reappearing as an advisory is a better signal than any model-wide average.

The MOT record also has hard limits: it does not check the engine, clutch or gearbox, and it says nothing about outstanding finance, insurance write-off history, stolen markers or whether the mileage is genuine. Our used Kia Stonic buying guide covers what to check beyond the MOT.

Checking a specific Kia Stonic?

Enter its registration for finance, write-off, stolen, mileage and keeper history.

Other Kia models

Kia Stonic MOT FAQs

What does a Kia Stonic most commonly fail its MOT on?

The single most recorded defect on Kia Stonic cars failing their 2025 MOT was "brake pads less than 1.5 mm thick", appearing on 17.42% of failure items.

Does this mean my Kia Stonic will fail?

No. This is what testers recorded across every Kia Stonic that failed in 2025. It shows where this model tends to need attention, not the condition of any individual car. The Kia Stonic passed 90.76% of its initial tests.

How do I see a specific Kia Stonic's MOT history?

Enter its registration on our free MOT history check to see that car's own test results, advisories and recorded mileages.

Defect counts from the DVSA MOT Anonymised test-item data for 2025 (class 4 initial tests, failure items only — advisories and minor defects excluded), licensed under the Open Government Licence v3.0.